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Aimed at the acoustic signals from heavy sizing-press and rolling bearing rig, a preprocessing of autocorrelation for independent component analysis (ICA) is proposed.
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摘要以大型轧钢机和滚动轴承试验台爲研究对象，应用独立分量方法来分离机器的声音信号，并提取其状态特征。 |
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Aimed at the active-pulling control features of lifting-cable in vertical lift process, finite element optimum design method was adopted, the problem of calculation of lifting-cable force was solved, the trend of lifting-cable force was also analyzed, the
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针对竖转提升过程中提升索主动张拉的控制特点，采用有限元优化设计的方法，解决了提升索力计算的问题，并分析了提升索力的变化规律，将理论计算结果应用于工程实际。 |
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Aimed at the current problem of urban roadway planning and layout in China, this paper also brings forward the fundamental urban roadway plan and effective measures to improve the capacity of urban roadway network, especially crossroads.
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针对目前中国大中城市道路规划布局存在的问题，提出了城市道路网布局的原则和提高城市道路网，特别是交通节点通行能力的具体技术措施。 |
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Aimed at the equal-diameter cam mechanism with follower of planar movement, and according to two conditions of existing meaningful solution of the mechanism and of ensuring transmission angle of output swinging rod, the value selection ranges of cam motio
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摘要针对平面运动从动件等径凸轮机构，根据机构存在有意义解和保证输出摆杆传动角两个条件，分析并确定了凸轮运动角、输出摆杆摆角及其初始安装角的取值范围，进而绘制了凸轮运动角与摆杆摆角的可选值域图，为该机构的设计与使用提供了方便。 |
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Aimed at the feature of great fluctuation of water flow-rate in rivers and taking the monthly average flow-rate at low water with 90% guaranty in recent ten years as design flow-rate, the permissible amount of major pollutants discharged into Yellow River
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摘要针对河水流量变化大这一特点，采用以对数正态分布理论为指导的随机计算模式，以近十年90%保证率最枯月平均流量为设计流量，确定黄河兰州段主要污染物的容许排污量，即随机水环境容量。 |
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Aimed at the feature of weak local searching ability of the genetic algorithm, let it be combined with the gradient descending method so as to raise its partial searching ability, and a test has been carried out.
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文中针对遗传算法局部搜索能力弱的特点，将其与梯度下降法结合，提高其局部搜索能力，并进行了测试。 |
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Aimed at the international engineering project life cycle entire process in various risks factor, we give the risk rank analysis policy-making table, and reduce the attributes and the attribute values of the venture decision table using the roughest theor
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摘要针对国际工程项目生命周期全过程中的各风险因素，给出了风险等级分析的决策表，并运用粗集对风险决策表的各属性和属性值进行约简，找出了引发各等级风险度的主要特征属性；然后结合神经网络模型进行分析，使国际承包商在作风险因素分析时节省了时间，更为快捷地决定投标与否及投标成本。 |
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Aimed at the parameter estimation and model reduction problems of non-linear systems in noisy environment, a class of particle swami optimization (PSO) approach with hypothesis test is proposed, named PSOHT, which estimates parameters by using PSO operato
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摘要针对噪声环境下的非线性系统参数估计和模型降阶问题，提出了一种带假设检验的微粒群优化算法(PSOHT)，以最小化平均平方误差为目标，结合统计意义下的评价和比较，通过微粒群操作进行参数估计。 |
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Aimed at the port/starboard discrimination problem of the traditional single-line array, this paper mentioned some relative factors of the port/starboard discrimination method of mother ship maneuverability, and draws quantitative conclusions about the ma
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摘要针对传统单根线列阵的左右舷分辩问题，经过深入分析，给出了本舰机动左右舷分辨方法中的一些影响因素，并对机动角度和滞后时间得出了定量结论。 |
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Aimed at the requirement of antagonism simulation, the design of the intelligent antagonism target was divided into two parts, decision simulation and aircraft simulation.
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摘要针对目前对抗性空战仿真的需要，将对抗性智能空战目标机分解为目标机决策仿真和目标机实体仿真两部分进行设计。 |
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Aimed at the rotor bearing system of 300 MW steam turbogenerator set and on the basis of establishing its concentrated general model with 8 supportings and 9 nodes, a study was carried out on the bending vibration response of the most left end surface of
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摘要针对300MW汽轮机组转子轴承系统，在建立其8支承9节点集总模型的基础上，对轴系最左端面和发电机右端面的弯曲振动响应进行研究。 |
